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【单选题】
以下关于BP神经网络的描述中错误的是( )A.
采用误差反向传播的负梯度下降算法调整网络
B.
BP网络是一种前向网络结
C.
神经网络的层内之间不存在连
D.
前一层的神经元和后一层的神经元存在部分连接关系
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皮皮学刷刷变学霸
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【单选题】听力原文： We know then that in the US, its the job of Congress to propose new laws, which we call bills, and perhaps to modify these bills and then write on them. But even if the bill is passed in Congres...
A.
Why the President opposes a bill.
B.
How lawmakers want to revise a bill.
C.
Why a deadline has not been met.
D.
When lawmakers plan to end their session.
【单选题】礼仪是整个社会文明发展的程度的标志，同时礼仪也反作用于社会，对社会的风尚产生影响，所以从某种意义上说，在维护社会（）方面，礼仪起着法律所起不到的作用。
A.
治安
B.
秩序
C.
安全
D.
道德
【单选题】听力原文： We know then that in the US, it's the job of Congress to propose new laws, which we call bills, and perhaps to modify these bills and then write on them. But even if the bill is passed in Congre...
A.
How the President proposes new laws.
B.
How a bill is passed by lawmakers in Congress.
C.
How the President can reject a proposed law.
D.
How lawmakers can force the President to sign a bill.
【简答题】用双线性变换法设计一个三阶巴特沃思数字高通滤波器,采样频率fs=8kHz,通带边界频率为1.0kHz。
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